6. Sizing up a Poll - population of probable Values and At the beginning of the 2011-2012 NBA season, the players were repeated locked in a labor dispute, and the fans had become disgruntled. from Read the following excerpt from a Poll Position media report that les appeared during that time period. Title: 76%: We Do Not Miss the NBA Author: Larry Register Source: https://bleacherreport.com/articles/930316-nba-lockout- 76-percent-of-those-polled-do-not-miss-professional- basketball The National Basketball Association (NBA) regular season was scheduled to start November 1st, but a labor dispute caused the postponement of all games till now. With one week gone we wanted to know if you are missing the NBA. The clear answer is no! In a Poll Position national telephone survey, 76% of the people we asked said they are not missing NBA games, 12% are, and 12% did not have an opinion. Poll Position's scientific telephone survey of 1,179 registered voters nationwide was conducted November 6, 2011, and has a margin of error of +3%. a. Explain where the margin of error of 13% came from? i. From 76 /12 = 3 ii. From the fact that the only 3% of those surveyed answered outside of two standard deviations from the true parameter ili. From 1179 ~ 0.03 iv. It came from the article, near the end. b. Polling organizations don't typically just come up with a reasonable sounding sample size then take the sample, find the statistic, and construct their confidence intervals. Most ofte they reverse engineer the problem-starting with a margin of error and some associated confidence level that they can live with, and then working backwards to the size of the sample needed to achieve that outcome